Answer: -.6
Step-by-step explanation: Isolate t
In order to keep the equation equal, what is done to one side must be done to the other
1. You would subtract 1.5 from each side so you end up -3t = 5
2. Divide -3 from both sides, you are left with t = -.6 which is your answer
The answer I would say would be B.
V=3.14 5^2x15-3.14x2^2x15
=3.14x15(5^2-2^2) <—21
≈989. 601685
≈989.1 <—(3.14)